Products of COLDWAY SA (5)

Solid-gaz absorption system: a unique and revolutionary technology

Product range

Alcatherm Coolsplit

Alcatherm containers

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Two affiliated researchers from a french CNRS unit, Francis Kindbeiter and Laurent Rigaud developed and industrialized an innovative technology , the thermochemical process based on solid-gas absorption and founded COLDWAY in 2001.

The specificity of this advanced invention lies in the total autonomy of the process which does not require any external electric power or diesel engine, is mobile and reusable with no time limit and no consumables. Cold or heat is thus self-generated from an elementary chemical reaction. The process does not use any engine or compressor, is therefore totally silent, eco-friendly, does not wear out and requires low maintenance.

Thanks to its innovative technology, COLDWAY is now targeting to be positioned as one of the major players of the temperature controlled equipment market and thermal heat storage. To claim that position, the company chose to get a foothold in the markets where temperature control is critical in terms of risk management.

COLDWAY is providing temperature controlled appropriate solutions which are also ensuring compliance with regulatory and sanitary safety requirements as well as cost control with a reduced impact on the environment.

COLDWAY designed and developed an extensive product range covering the field of temperature controlled transport and storage by coupling its insulated containers to its patented self-refrigerating and electronically monitored system.

Further than the strict Cold Chain management, COLDWAY is clearly identified as the matching partner for industries wishing to progress towards an alternative non polluting technology offering significant cost reductions at the same time. With a total command of its industrial process, COLDWAY is now able to implement its advanced technology in different industrial fields and to address any issue linked to Cold or Heat management.

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Solid-gaz absorption system: a unique and revolutionary technology

The process developed by COLDWAY is based on a simple principle: producing cold and heat instantaneously, independently and powerfully based on an elementary chemical reaction between ammonia and salts contained in a reactor and an evaporator. The COLDWAY thermochemical system consists of three elements - a reactor containing the reactive material (salts and graphite), an evaporator containing liquid ammonia and a communicating valve between both reservoirs. When the valve is opened, the ammonia vaporises inside the evaporator and generates cold, while the gas is absorbed by the salts inside the reactor, releasing heat. This immediate production of cold and heat may have a range of between -30°C and more than 200°C. Hence, heat and cold may be produced at anytime and anywhere, without any connection being necessary. This production progresses without any noise or vibration. The reactive elements - ammonia, salts and graphite - are perfectly confined within a hermetic circuit sealed at the factory, requiring no filling.

Once the ammonia is completely evaporated, production of heat and cold ceases and the system can be recharged by supplying heat from outside (by electrical or solar energy, process heat recovery...) which causes the ammonia to condense. Once regenerated, the thermochemical system stores the energy and is ready for use again. The cycle is infinitely reversible, as proven by the tests conducted by Coldway, during which several thousands of production and recharging cycles were performed.

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Product range

A range of products serving many needs

Mastery of its thermochemical process has allowed COLDWAY to develop a whole industrial range of containers, isothermal, refrigerated and independent, without any electrical connection, allowing storage and transport of temperature-sensitive products at the desired temperature over time spans ranging from 24 to 48 hours of stand-alone operation.

The thermochemical system is linked to a printed circuit board and software ensuring maintenance, regulation and traceability of a temperature within + or – 2°C for the transported products. The product ranges developed by COLDWAY thus comply perfectly with regulatory requirements particularly in terms of precise temperature regulation, also known as "temperature-controlled transport", while offering users extensive freedom both in the transport circuits and vehicles used.

More than 800 containers equipped with the COLDWAY technology are used to date by more than 300 customers in France and in 33 countries in the health, food and transport logistics sector.

Product range

COLDWAY's product portfolio is organised around two major product categories in order to cover a broad spectrum of customer needs

The Alcatherm range: mobile isothermal containers equipped with a thermochemical system

The long-term transport and storage products using conventional technologies

The Alcatherm range: mobile isothermal containers equipped with the thermochemical system

Alcatherm is a complete range of containers equipped with the thermochemical system and fulfilling the requirements of markets such as healthcare and food.

The Alcatherm containers (of a volume between 35 and 900 litres) are the first to generate cold fully independently, without the aid of any electric power supply (between 6 and 48 h). Quick and easy to use, they do not require any preparation and offer a solution combining autonomy, performance and traceability. They fulfil the strictest physical and logistic requirements of the cold chain, particularly collection or delivery by road of temperature-sensitive products requiring frequent stops, while protecting the environment:

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Alcatherm Coolsplit

Transport boxes for temperature-sensitive products with a capacity of between 35 and 135 litres. These stand-alone, removable boxes facilitate handling and ensure delivery without any break in the cold chain.

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Alcatherm containers

Transport containers for temperature-sensitive products in vehicles, with a capacity of between 160 and 2000 litres. Being independent, they can be easily fitted in a standard vehicle without any power connection and without excess fuel consumption.